223:. It is a trachytic shield volcano topped by more recent parasitic cones and lava flows. The basal trachyte dates to roughly 6.8 million years ago, while the uppermost basalts date to around 500,000 years ago. Large amounts of basalt were deposited in the Rift valley on the north, east and south of the volcano through effusion and explosions during the early Holocene. A breached scoria cone that forms the summit of the mountain also erupted fluid olivine basalts, with some eruptions later than the period around 3,000 years ago when Lake Suguta dried out. Eruptions may have occurred around the same time as historical eruptions of the
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203:. It extends from the western side of the rift past the center. The mountain forms a broad shield. The large basal part is about 200 metres (660 ft) deep, made up of outward-dipping trachytic lavas, breccias and tuffs. A few thousand years ago the Suguta valley was filled by a major lake, but now it is extremely dry and hot, with only the small
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at the northern end. Some of the recent cones on the floor of the rift valley and on the eastern side of the rift below the Tirr Tirr
Plateau contain hot springs.
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Alkaline rocks and carbonatites of the world, Part 3
199:, a section of the Kenyan Rift Valley just south of
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323:NASA Earth Observatory (November 20, 2011).
215:Namarunu was mainly formed during the upper
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739:Paleontological and archeological sites
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37:. Namarunu in the bottom left.
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654:Mount Kipipiri Forest Reserve
644:Lake Bogoria National Reserve
634:Kerio Valley National Reserve
338:Woolley, Alan Robert (2001).
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827:Pleistocene shield volcanoes
817:Polygenetic shield volcanoes
674:Mount Longonot National Park
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664:Lake Naivasha National Park
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195:Namarunu is located in the
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837:Shield volcanoes of Africa
659:Kigio Wildlife Conservancy
639:Lake Baringo National Park
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237:List of volcanoes in Kenya
53:817 m (2,680 ft)
832:Holocene shield volcanoes
822:Pliocene shield volcanoes
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669:Hell's Gate National Park
649:Lake Nakuru National Park
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391:Great Rift Valley, Kenya
268:Global Volcanism Program
185:Great Rift Valley, Kenya
679:Mount Suswa Conservancy
273:Smithsonian Institution
16:Shield volcano in Kenya
344:. Geological Society.
325:"Suguta Valley, Kenya"
307:NASA Earth Observatory
33:Satellite view of the
618:Southern Ewaso Ng'iro
464:Hills and escarpments
170:6550 BCE ± 1000 years
684:Shompole Conservancy
481:Nguruman Escarpment
77: /
812:Volcanoes of Kenya
807:Mountains of Kenya
627:Conservation areas
486:Losiolo Escarpment
297:, p. 108-109.
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471:Elgeyo Escarpment
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81:1.98°N 36.43°E
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328:. Retrieved
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295:Woolley 2001
276:. Retrieved
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201:Lake Turkana
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751:Aiyangiyang
496:Ngong Hills
455:Mount Suswa
205:Lake Logipi
86:1.98; 36.43
84: /
59:Coordinates
801:Categories
766:Koobi Fora
542:Elmenteita
330:2011-12-29
278:2021-06-24
263:"Namarunu"
243:References
588:Ol Arabel
398:Volcanoes
211:Evolution
97:Geography
49:Elevation
776:Lothagam
756:Amboseli
725:Naivasha
593:Perkerra
547:Naivasha
450:Longonot
435:Menengai
410:Namarunu
231:See also
221:Holocene
217:Pliocene
191:Location
177:Namarunu
138:Location
122:Namarunu
22:Namarunu
771:Laetoli
710:Marigat
705:Kinyang
613:Turasha
598:Waseges
532:Bogoria
527:Baringo
517:Turkana
445:Olkaria
316:Sources
148:Geology
72:36°26′E
730:Magadi
720:Gilgil
715:Nakuru
700:Kapedo
608:Malewa
603:Gilgil
573:Suguta
566:Rivers
557:Natron
552:Magadi
537:Nakuru
522:Logipi
440:Eburru
430:Korosi
420:Silali
348:
69:1°59′N
761:Karsa
578:Kerio
510:Lakes
179:is a
142:Kenya
583:Molo
425:Paka
346:ISBN
803::
287:^
271:.
265:.
250:^
187:.
383:e
376:t
369:v
354:.
333:.
309:.
281:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
